CN102203753A - Data writing processing method, apparatus and terminal equipment - Google Patents

Abstract

This invention discloses a data write processing method, apparatus, and terminal device. The method includes: receiving a first batch of write data of a first preset quantity from a host; executing a second preset quantity of data write procedures to write the first batch of write data into a storage space; and receiving a second batch of write data of a first preset quantity from the host, wherein the second preset quantity is twice the first preset quantity; and writing the second batch of write data into the storage space by means of a data write procedure after the first batch of write data has been completed following the receipt of the second batch of write data. The apparatus includes a receiving module and a first writing module. This invention also provides a terminal device. This invention optimizes the performance of data write processing and improves the write rate of the terminal device.

Description

Data writing processing method, device and terminal equipment

technical field

Embodiments of the present invention relate to communication technologies, and in particular, to a data writing processing method, device, and terminal equipment.

Background technique

With the continuous development and progress of science and technology, the types of communication products are becoming more and more diversified, so as to continuously meet the various needs of users. Among them, the terminal data card product is a communication device used for data storage, reading and writing. Currently, the terminal data card products on the market usually support mini (mini) Secure Digital (Secure Digital; hereinafter referred to as: SD) card. After the data card is inserted into a personal computer (Personal Computer; hereinafter referred to as: PC), the PC will pop up the SD U disk device, which can be read and written by the user. When the terminal data card is used as an SD U disk, the performance of reading data is generally higher than that of writing data. For example, the reading speed of a certain product can reach 7-8MByte/s, while the writing speed is only 3-4MByte/s. Performance optimization is necessary to improve user experience.

The current Universal Serial Bus (Universal Serial Bus; hereinafter referred to as: USB) mass storage (Mass Storage) devices all transmit data through batch (bulk) endpoints, usually following the following three stages: Command Block Wrapper ; Hereinafter referred to as: CBW)->Data (DATA)->Command Status Wrapper (Command Status Wrapper; hereinafter referred to as: CSW). Among them, CBW is a data block, which carries a small computer system interface (Small Computer System Interface; hereinafter referred to as: SCSI) command sent by the host to the device, and the device can determine the specific situation of the subsequent DATA stage according to the received CSW, that is, No data needs to be transferred, input (IN) transfer (device to host) or output (OUT) transfer (host to device), and the CSW stage feeds back the transfer result to the host or device.

In the prior art, when the PC writes data to the terminal device, it first transmits the written data length and command to the device side through the CBW, and the device side prepares to receive data from the PC after receiving the CBW. Under the Windows system, the length of the data that needs to be written by the PC to the device side each time is 64KByte, and the data that is less than 64KByte is written once. Figure 1 is a schematic diagram of the execution process and time axis of the data writing method in the prior art. As shown in Figure 1, time period A indicates that the device side receives 64KByte data from the PC from the USB, and time period B indicates that the device side receives the completed data Then write the 64KByte data to the SD interface. The time period E indicates the time to return to CSW, that is, after the data is written to the SD card, the transmission result is fed back to the PC through CSW. The time period F indicates that the next data packet is sent from CSW to PC time.

However, the inventor finds that there are at least the following defects in the prior art in the process of realizing the present invention: the prior art adopts serial data transmission, and cannot utilize the multithreading and direct processing of the CPU (Centre Processing Unit; hereinafter referred to as: CPU) The advantage of Direct Memory Access (hereinafter referred to as: DMA) to move data in parallel leads to lower performance of data write processing.

Contents of the invention

Embodiments of the present invention provide a data writing processing method, device, and terminal equipment, which adopt a data parallel writing mechanism to optimize the performance of data writing processing and increase the writing rate of the terminal equipment.

In order to achieve the above object, an embodiment of the present invention provides a data writing processing method, including:

receiving a first batch of write data of a first preset quantity from the host;

Executing a second preset number of data writing programs to write the first batch of write data into the storage space, and receive the first preset number of second batch of write data from the host, wherein, The second predetermined amount is twice the first predetermined amount;

When the writing of the first batch of writing data is completed after receiving the second batch of writing data, write the second batch of writing data into the storage space through the data writing program.

An embodiment of the present invention provides a data writing processing device, including:

a receiving module, configured to receive a first batch of write data of a first preset quantity from the host;

The first writing module is configured to execute a second preset number of data writing programs, so as to write the first batch of write data into the storage space, and receive the first preset number of second programs from the host. Two batches of writing data, wherein the second preset number is twice the first preset number;

The second writing module is configured to write the second batch of write data through the data writing program when the writing of the first batch of write data is completed after receiving the second batch of write data Write to the storage space.

An embodiment of the present invention provides a terminal device, including the above data writing processing apparatus.

A data writing processing method, device, and terminal device provided by an embodiment of the present invention firstly receive a first preset amount of first batch of write data from a host, and then execute a second preset amount of data writing program to write the second batch of data A batch of write data is written into the storage space. At this time, the first preset amount of second batch of write data is received from the host. When the first batch of write data is completed after receiving the second batch of write data , and then write the second batch of written data into the storage space; this embodiment uses a data parallel writing mechanism to execute the receiving task of the second half of the written data in parallel with the writing task of the entire written data, which can effectively utilize the CPU The advantages of multi-threading and DMA parallel data transfer optimize the performance of data write processing and improve the write rate of terminal devices.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic diagram of an execution process and a time axis of a data writing method in the prior art;

FIG. 2 is a flow chart of Embodiment 1 of the data writing processing method of the present invention;

3 is a flow chart of Embodiment 2 of the data writing processing method of the present invention;

FIG. 4 is a schematic diagram of the execution process and time axis in Embodiment 2 of the data writing processing method of the present invention;

FIG. 5 is a second schematic diagram of the execution process and time axis in Embodiment 2 of the data writing processing method of the present invention;

6 is a structural diagram of Embodiment 1 of the data writing processing device of the present invention;

FIG. 7 is a structural diagram of Embodiment 2 of the data writing processing device of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

FIG. 2 is a flow chart of Embodiment 1 of the data writing processing method of the present invention. As shown in FIG. 2 , this embodiment provides a data writing processing method, which may include the following steps:

Step 201, receiving a first batch of write data of a first preset quantity from the host;

Step 202, execute a second preset number of data writing programs to write the first batch of write data into the storage space, and receive the first preset number of second batch of write data from the host , wherein the second preset number is twice the first preset number;

Step 203, when the writing of the first batch of writing data is completed after receiving the second batch of writing data, write the second batch of writing data into the storage space through the data writing program.

Further, as a preferred embodiment, step 203 further includes:

Step 2031: After receiving the second batch of written data, judge whether the writing of the first batch of written data is completed, if yes, execute step 2033, otherwise execute step 2032;

Step 2032: If the first batch of written data is still being written, after the writing of the first batch of written data is completed, write the second batch of written data through the data writing program into the storage space;

Step 2033, if the first batch of written data has been written, restart a second preset number of data writing procedures to write the second batch of written data into the storage space.

In some cases, when the data is written, or when the second batch of data is received frequently, the first batch of written data has been written. If this happens frequently, the write performance will be degraded due to incomplete execution of the data writing program. Therefore, before executing step 201, it is also possible to judge whether the write lead probability of the current host has reached the preset probability threshold, and if the probability threshold has been reached, the same method as the first batch of written data and the second batch of written data will still be used. The data writing program corresponding to the size of the data performs the writing operation of the first batch of written data and the second batch of written data respectively. The writing and transcription probability here is the number of occurrences that the first batch of written data has been written for every 100 second batch of written data received. In the embodiment of the present invention, this probability threshold may be 5/100.

The second preset number in this embodiment is determined by the data processing capability of the terminal device, and the first preset number is half of the second preset number. This embodiment is specifically applied to the scenario where the PC writes data to the terminal data card Among them, the host computer may specifically be a PC. Under the Windows system, since the length of the data packet sent by the PC to the device side each time is 64K bits (Byte), the second preset number in this embodiment is here The specific setting is 64K Byte, and the first preset quantity is specifically set to 32K Byte. In this embodiment, before implementing the data write processing scheme, experimental statistics can be performed on the write lead probabilities of various PCs. The write lead probability here is the first batch of writes of the first preset number written in the SD card. The probability that the second batch of written data of the first preset quantity is not received before the data, that is, the second batch of written data of 32K Byte sent by the PC is not received before the first batch of written data of 32K Byte is written in the SD card. The probability of entering data, the preset probability threshold can be 5/100, which means that for every 100 data packets written, only 5 data packets have written more than 32K Bytes of data in the SD card. 32K Byte, that is, the 5 data packets did not receive the second batch of 32K Byte write data before writing the first batch of 32K Byte write data in the SD card. Through actual measurement, it is found that the write-ahead probability on most PCs is extremely low, that is, lower than the preset probability threshold. In this embodiment, when the write lead probability of the host is less than the preset probability threshold, first receive the first preset amount of write data from the host, that is, first receive the 32K Byte write data sent from the PC .

In this embodiment, after receiving the first batch of write data of the first preset quantity from the host computer, the data writing procedure of the second preset quantity is started, and the second preset quantity is directly written into the SD card. The first batch of write data, and at the same time continue to receive the first preset number of second batch of write data from the host.

That is, when the first batch of 32K Byte write data is received, it will directly write the first batch of 64K Byte write data to the SD card, and at the same time continue to receive the second batch of 32K Byte write data from the host. In this embodiment, the write data of 64K Byte sent by the host is divided into two parts. When half of the data is received, the write operation of the data is started, and the receiving task of the second half of the data is executed in parallel with the writing task of the data, which can effectively utilize The advantages of CPU multi-threading and DMA parallel data transfer, and directly write 64K Byte when executing the data writing task, which reduces the writing time compared with writing twice.

This embodiment provides a data writing processing method. First, a first batch of write-in data of a first preset quantity is received from a host computer, and then a second preset quantity of data writing procedures are executed to write the first batch of write-in data. At this time, the second batch of write data of the first preset quantity is received from the host, and when the writing of the first batch of write data is completed after receiving the second batch of write data, the second batch of The written data is written into the storage space; this embodiment uses a data parallel writing mechanism to execute the receiving task of the second half of the written data in parallel with the writing task of the entire written data, which can effectively utilize the multi-threading and DMA parallelism of the CPU The advantage of moving data optimizes the performance of data writing processing and improves the writing rate of terminal devices.

Fig. 3 is the flow chart of embodiment two of the data writing processing method of the present invention, as shown in Fig. 3, this embodiment provides a kind of data writing processing method, the first preset quantity in this embodiment is specifically 32K Byte, the second The second preset quantity is specifically 64K Byte, and the method provided in this embodiment can specifically include the following steps:

Step 301 , judging whether the write-ahead probability on the host is less than a preset probability threshold, if yes, go to step 302 , otherwise go to step 307 .

This step is to obtain the write lead probability on the host according to the type of the host, and judge whether the write lead probability is less than the preset probability threshold, where the probability threshold can be set to 5/100, and if so, perform the subsequent step 302- 306, otherwise execute steps 307-309. In this embodiment, before implementing the data write processing scheme, experimental statistics can be performed on the write lead probabilities of various PCs. The write lead probability here is the first batch of writes of the first preset number written in the SD card. The probability that the second batch of written data of the first preset quantity is not received before the data, that is, the second batch of written data of 32K Byte sent by the PC is not received before the first batch of written data of 32K Byte is written in the SD card. The probability of entering data, the preset probability threshold can be 5/100, which means that for every 100 data packets written, only 5 data packets have written more than 32K Bytes of data in the SD card. 32K Byte, that is, the 5 data packets did not receive the second batch of 32K Byte write data before writing the first batch of 32K Byte write data in the SD card. Through actual measurement, it is found that the write-ahead probability on most PCs is extremely low, that is, lower than the preset probability threshold. In this embodiment, when the write lead probability of the host is less than the preset probability threshold, first receive the first preset amount of write data from the host, that is, first receive the 32K Byte write data sent from the PC .

Step 302, receiving the first batch of write data of 32K Byte from the host.

When the write lead probability on the host is less than the probability threshold, the first batch of write data of 32K Byte from the host is received. FIG. 4 is a schematic diagram of the execution process and time axis in Embodiment 2 of the data writing processing method of the present invention, as shown in FIG. As shown in 4, if the write lead probability satisfies the probability threshold, the process of receiving data shown in time period A is executed.

Step 303, execute the 64K Byte data writing program to write the first batch of write data into the SD card, and receive the second batch of 32K Byte write data from the host.

After receiving the first batch of 32K Byte write data sent by the host, that is, after executing the task shown in time period A in Figure 4, execute the tasks shown in time period B and C in parallel, that is, execute 64K Byte data writing Enter the program to write the first batch of 32K Byte write data to the SD card, and at the same time continue to receive the second batch of 32K Byte write data from the host.

Step 304, after receiving the second batch of write data of 32K Byte, judge whether the first batch of write data of 32K Byte has been written in SD card, if yes, then execute step 305, otherwise step 306, continue to execute Data writing process in step 303.

After receiving the second batch of 32K Byte write data, check whether the first batch of 32K Byte write data has been written in the SD card, that is, after executing the task shown in time period B in Figure 4, judge the time Whether the writing of the first batch of data of 32K Byte has been completed in the writing process shown in section C, if yes, then execute step 305, otherwise execute step 306.

Step 305, restart the 64K Byte data writing program to rewrite the 64K Byte write data to the SD card.

If the write operation of the first batch of 32K Byte data has been written in the SD card when receiving the second batch of 32K Byte data written in time period B, it indicates that the speed of writing data exceeds The speed of receiving data. At this time, the data written may be empty. In order to avoid the problem of data errors, this embodiment restarts the execution process of the 64K Byte data writing program when this special situation occurs. , Re-write 64K Byte write data to the SD card to ensure the correctness of the write data.

Step 306, continue to execute the 64K Byte data writing program in step 303, after the writing of the first batch of writing data is completed, write the second batch of writing data in the SD card.

If after receiving the second batch of 32K Byte write data shown in time period B, the writing process of the first batch of 32K Byte write data has not been completed in the SD card, then there will be no abnormal data error. Continue to execute the operation of writing data to the SD card in step 303, without interrupting the writing process, that is, continuously execute the tasks shown in time period C.

Continuing to refer to the above-mentioned Figure 4, after the data writing task shown in time period C is completed, time periods D and E are also included in the follow-up, where time period D represents the return to CSW time, that is, after the data is written to the SD card, the data will be written to the SD card through CSW. The transmission result is fed back to the PC, and the time period E represents the time from the CSW to the next data packet delivered by the PC.

Step 307, receiving the first batch of write data of 32K Byte from the host.

When the write-ahead probability on the host is greater than or equal to the probability threshold, it indicates that the host has a high probability that the writing rate is greater than the receiving rate. The probability is higher, but it will cause the write performance to decline. Therefore, for this situation, this embodiment adopts another strategy to complete the data writing, that is, receiving the first batch of 32K Byte written data from the host, and FIG. 5 shows the second embodiment of the data writing processing method of the present invention Schematic diagram 2 of the execution process and time axis of , as shown in FIG. 5 , if the write lead probability does not meet the probability threshold, the process of receiving data shown in time period A in FIG. 5 is executed.

Step 308, execute the data writing program corresponding to the first batch of written data, so as to write the first batch of written data into the SD card, and receive the second batch of 32K Byte written data from the host.

After receiving the first batch of write data of 32K Byte sent by the host, that is, after executing the task shown in time period A in Figure 5, execute the tasks shown in time period B and C in Figure 5 in parallel, that is, execute the first The data writing program corresponding to the batch write data first writes the first batch of 32K Byte write data to the SD card, and at the same time continues to receive the second batch of 32K Byte write data from the host.

Step 309, execute the data writing program corresponding to the second batch of writing data, so as to write the second batch of writing data into the SD card.

After writing the first batch of 32K Byte write data in the SD card, execute the data writing program corresponding to the second batch of write data, and start writing the second batch of 32K Byte write data to the SD card, that is, in After the task shown in time period C in Figure 5 is completed, the task shown in time period D is executed again, and the process of writing data to the SD card is divided into two stages and executed separately.

Continuing to refer to the above-mentioned Figure 5, after completing the data writing tasks shown in time periods C and D, time periods E and F are also included in the follow-up, where time period E represents the return to CSW time, that is, after the data is written to the SD card, pass The CSW feeds back the transmission result to the PC, and the time period F represents the time when the next data packet is delivered from the CSW to the PC.

This embodiment provides a data writing processing method. First, a first batch of write-in data of a first preset quantity is received from a host computer, and then a second preset quantity of data writing procedures are executed to write the first batch of write-in data. At this time, the second batch of write data of the first preset quantity is received from the host, and when the writing of the first batch of write data is completed after receiving the second batch of write data, the second batch of The written data is written into the storage space; this embodiment uses a data parallel writing mechanism to execute the receiving task of the second half of the written data in parallel with the writing task of the entire written data, which can effectively utilize the multi-threading and DMA parallelism of the CPU The advantage of moving data optimizes the performance of data writing processing and improves the writing rate of terminal devices.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

FIG. 6 is a structural diagram of Embodiment 1 of the data writing processing device of the present invention. As shown in FIG. 6 , this embodiment provides a data writing processing device that can specifically perform the steps in Embodiment 1 of the above-mentioned method. Here No longer. The data writing processing apparatus provided in this embodiment may specifically include a receiving module 601 , a first writing module 602 and a second writing module 603 . Wherein, the receiving module 601 is configured to receive a first preset quantity of first batch of write data from the host. The first writing module 602 is configured to execute a second preset number of data writing programs, so as to write the first batch of write data into the storage space, and receive the first preset number of second data from the host. Writing data in two batches, wherein the second preset number is twice the first preset number. The second write module 603 is configured to write the second batch of write data through the data writing program when the writing of the first batch of write data is completed after receiving the second batch of write data Write to the storage space.

FIG. 7 is a structural diagram of Embodiment 2 of the data writing processing device of the present invention. As shown in FIG. 7 , this embodiment provides a data writing processing device that can specifically perform the steps in Embodiment 2 of the above-mentioned method. Here No longer. The data writing processing device provided in this embodiment is based on the above shown in FIG. 6 , and the second writing module 603 may specifically include a judging unit 613 , a first writing unit 623 and a second writing unit 633 . Wherein, the judging unit 613 is configured to judge whether the writing of the first batch of writing data is completed when receiving the second batch of writing data. The first writing unit 623 is configured to, if the first batch of write data is still being written, after the writing of the first batch of write data is completed, write the second batch of write data through the data writing program. The batch write data is written into the storage space. The second writing unit 633 is configured to restart the second preset number of data writing procedures if the first batch of write data has been written, so as to write the second batch of write data into all storage space.

Further, the data writing processing apparatus provided in this embodiment may further include a judging module 701 and a writing processing module 702 . Wherein, the judging module 701 is used for judging whether the write lead probability on the host is smaller than a preset probability threshold. The write processing module 702 is configured to receive a first batch of write data of a first preset quantity from the host when the judging result of the judging module 701 is that the write lead probability is greater than or equal to a preset probability threshold; and execute the first A data writing program corresponding to a batch of write data, so as to write the first batch of write data into the storage space, and receive the first preset quantity of second batch of write data from the host; execute the A data writing program corresponding to the second batch of write data, for writing the second batch of write data into the storage space. The receiving module 601 is specifically configured to execute the step of receiving a first preset quantity of the first batch of write data from the host when the judging result of the judging module 701 is that the write lead probability is less than a preset probability threshold. Wherein, the write lead probability is the probability that the first preset quantity of the second batch of write data is not received before the first preset quantity of write data is written in the storage space .

Specifically, the first preset number in this embodiment may be specifically 32K bits, and the second preset number may be specifically 64K bits.

This embodiment provides a data writing processing device, which first receives a first batch of write-in data of a first preset quantity from a host computer, and then executes a second preset quantity of data writing procedures to write the first batch of write-in data At this time, the second batch of write data of the first preset quantity is received from the host, and when the writing of the first batch of write data is completed after receiving the second batch of write data, the second batch of The written data is written into the storage space; this embodiment uses a data parallel writing mechanism to execute the receiving task of the second half of the written data in parallel with the writing task of the entire written data, which can effectively utilize the multi-threading and DMA parallelism of the CPU The advantage of moving data optimizes the performance of data writing processing and improves the writing rate of terminal devices.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. A data writing processing method, characterized in that, comprising: receiving a first batch of write data of a first preset quantity from the host; Executing a second preset number of data writing programs to write the first batch of write data into the storage space, and receive the first preset number of second batch of write data from the host, wherein, The second predetermined amount is twice the first predetermined amount; When the writing of the first batch of writing data is completed after receiving the second batch of writing data, write the second batch of writing data into the storage space through the data writing program. 2. The method according to claim 1, characterized in that, when the writing of the first batch of writing data is completed after receiving the second batch of writing data, the data writing program Writing the second batch of write data into the storage space includes: When receiving the second batch of write data, judging whether the writing of the first batch of write data is completed; If the first batch of write data is still being written, after the writing of the first batch of write data is completed, write the second batch of write data into the storage; If the first batch of writing data has been written, restarting the second preset number of data writing procedures to write the second batch of writing data into the storage space. 3. The method according to claim 1, further comprising: Determine whether the write lead probability on the host is less than a preset probability threshold; When the write lead probability is less than a preset probability threshold, performing the step of receiving a first preset number of first batches of write data from the host; When the write lead probability is greater than or equal to a preset probability threshold, a first preset amount of first batch of write data is received from the host; and a data writing program corresponding to the first batch of write data is executed to write writing the first batch of write data into the storage space, and receiving the first preset amount of the second batch of write data from the host; executing a data writing program corresponding to the second batch of write data, to write the second batch of write data into the storage space; Wherein, the write lead probability is the probability that the first preset quantity of the second batch of write data is not received before the first preset quantity of write data is written in the storage space . 4. The method according to any one of claims 1-3, wherein the first preset number is 32K bits, and the second preset number is 64K bits. 5. A data writing processing device, characterized in that, comprising: a receiving module, configured to receive a first batch of write data of a first preset quantity from the host; The first writing module is configured to execute a second preset number of data writing programs, so as to write the first batch of write data into the storage space, and receive the first preset number of second programs from the host. Two batches of writing data, wherein the second preset number is twice the first preset number; The second writing module is configured to write the second batch of write data through the data writing program when the writing of the first batch of write data is completed after receiving the second batch of write data Write to the storage space. 6. The device according to claim 5, wherein the second writing module comprises: a judging unit, configured to judge whether writing of the first batch of written data is completed when receiving the second batch of written data; The first writing unit is configured to: if the first batch of write data is still being written, after the writing of the first batch of write data is completed, use the data writing program to write the second Writing batches of data into the storage space; The second writing unit is configured to restart the second preset number of data writing procedures if the first batch of writing data has been written, so as to write the second batch of writing data into all storage space. 7. The device according to claim 5, further comprising: A judging module, configured to judge whether the write lead probability on the host is less than a preset probability threshold; A write processing module, configured to receive a first batch of write data of a first preset quantity from the host when the judgment result of the judging module is that the write lead probability is greater than or equal to a preset probability threshold; and execute the first batch of write data; A data writing program corresponding to a batch of write data, so as to write the first batch of write data into the storage space, and receive the first preset number of second batch of write data from the host; execute the A data writing program corresponding to the second batch of write data, so as to write the second batch of write data into the storage space; The receiving module is specifically configured to execute the step of receiving a first preset quantity of the first batch of write data from the host when the judgment result of the judging module is that the write lead probability is less than a preset probability threshold; Wherein, the write lead probability is the probability that the first preset quantity of the second batch of write data is not received before the first preset quantity of write data is written in the storage space . 8. The device according to any one of claims 5-7, wherein the first preset number is 32K bits, and the second preset number is 64K bits. 9. A terminal device, characterized by comprising the data writing processing device according to any one of claims 5-8.

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